Adaptive eigen-projection beamforming algorithms for 1-D and 2-D antenna arrays

Jeffrey Foutz, Andreas Spanias, Salvatore Bellofiore, Constantine Balanis

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

In this letter, we develop one-dimensional (1-D) and two-dimensional (2-D) adaptive algorithms that use gradient projections in select subspaces for use in antenna beamforming. The 1-D algorithm is essentially a significantly enhanced version of an eigen-projection algorithm that was previously developed for controls. The 2-D algorithm is new and is based on a stacked configuration of the enhanced 1-D algorithm. Both algorithms are applied to antenna beamforming in uniform linear and planar arrays. Simulation results show faster convergence as well as improved beam properties. In addition, results for a more realistic scenario with a BPSK signal and antenna coupling effects are also quite promising.

Original languageEnglish (US)
Pages (from-to)62-65
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume2
DOIs
StatePublished - Dec 1 2003

Keywords

  • Adaptive beamforming
  • SDMA
  • Smart antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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